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Last seen: Jan 4, 2026
Sure. Your install looks tidy. It is quite difficult to get like for like comparisons because my quotes all had different solutions. my chap quoted £2...
I got distracted by the topic - sorry. I can't make the battery numbers stack up. You need the biggest solar PV system (I only have 4kW), use Octopu...
@derek-m and Bob - whilst I appreciate H2 could have some future for very high energy users (steel production), I really think it is the fossil fuel i...
One of the first questions ASHP installers check, is your electric supply. I am lucky to have a home built in 2001, rural, with a step down transform...
I currently have a Nest thermostat that controls my oil boiler for radiators and hot water. With TRVs on all radiators except the ones next to the th...
@nigel42 I would also look at the Solic 200 electric diverter. VERY well engineered and built in Britain. 10 year warranty. Fit and forget. But i...
I think battery size / range is just another measure / choice when selecting an EV. Just like ICE performance and price. Else we would all be drivin...
Had my PV system for 9 years (Feb 2012). Originally cost £10,250. I am lucky to get the full Feed In Tariff (FiT) payments (currently 55p/kWh genera...
I've generated 33,725kWh over 9 years or 3,747kWh per annum. From a 4kW system. Worcestershire. Exactly South facing. 44 degree sloping roof. No ...
Not that I want to talk you out of your chosen heat pump, but if you picked a different model, then the PP issue goes away? I am purchasing a 18kW Da...
Greetings green fellows 🙂 I am Julian and been contributing to Mars YouTube and previous forum. I am married to Jackie. We have a 21 year old da...
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Degrees of Separation
Latest Posts
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RE: How Accurate Is My DIY Heat Loss Calculation?
@rob-of-york Thank you for that, whilst familiar with t...
By kilgorexv , 2 minutes ago
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RE: Adventures in heat loss calculations
Was the tweaking adjustment of assumptions to fit the f...
By JamesPa , 10 minutes ago
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RE: Switch suitable to change between two inverter CT's
I had Solis check the config of my inverter to allow ch...
By Batpred , 10 minutes ago
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RE: HeatGeek vs Octopus surveys: puzzling disparity - any ideas why?
Agree with Major. And even if I was very happy with ...
By Batpred , 46 minutes ago
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RE: Is the "divide by 2900" rule still valid?
There is another estimator that you could use, a formul...
By Rob of York , 4 hours ago
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RE: Glass lined Cylinder for private water supply
@davidb That's really interesting information, thank yo...
By ian33a , 4 hours ago
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RE: To re-pipe or not to re-pipe? Moving from oil boiler to air source heat pump.
@penval, really useful update. After all the discussion...
By Mars , 2 days ago
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RE: Who's your electricity provider and what's your tariff?
@papahuhu I prefer to look at it simplistically. We d...
By Old_Scientist , 3 days ago
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RE: Questions about A2A for heating as well as cooling
@rob-of-york I would concur with the underfloor insulat...
By Toodles , 4 days ago
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RE: New Vaillant Arotherm controls link to existing thermostats ; wired vs wireless
Nothing attached! I have rads but UFH makes the case ...
By JamesPa , 4 days ago
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RE: Cooling with air to water heat pumps
Passive cooling should always be the first call. Keep ...
By JamesPa , 4 days ago
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RE: Do I add Air Con or MVHR to existing A2W ASHP?
@rob-of-york Thank you, I’m thinking along these same l...
By Toodles , 4 days ago
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@Mars Good questions! The downstairs unit did the maj...
By Rob of York , 4 days ago
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RE: Volumisers in Heat Pump Systems: Does Placement Matter?
@dave, I think @jamespa has probably identified the mos...
By Mars , 5 days ago



